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Other

achromatic

Pronunciation: /ˌakrə(ʊ)ˈmatɪk/

Definition of achromatic

adjective

  • 1relating to, using, or denoting lenses that transmit light without separating it into constituent colours: achromatic microscopes a lens of achromatic construction
  • 2 literary without colour:the achromatic gloom

Origin:

late 18th century: via French from Greek a- 'without' + khrōmatikos (from khrōma 'colour')

achromatic in other Oxford dictionaries

Definition of achromatic in the US English dictionary

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